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Mineral content analysis of root canal dentin using laser-induced breakdown spectroscopy

Küçükkaya Eren S, Uzunoğlu , Sezer B, Yılmaz Z, Boyacı IH

OBJECTIVES: This study aimed to introduce the use of laser-induced breakdown spectroscopy (LIBS) for evaluation of the mineral content of root canal dentin, and to assess whether a correlation exists...
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Transdermal Nicotine Patch Effects on EEG Power Spectra and Heart Rate Variability During Sleep of Healthy Male Adults

Choi JB, Lee YJ, Jeong DU

OBJECTIVE: The effect of transdermal nicotine patch on sleep physiology is not well established. The current study aimed to examine the influence of nicotine patch on homeostatic sleep propensity and...
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Spectrum analysis for assessing red blood cell aggregation using high-frequency ultrasound array transducer

Yoon C

The purpose of this study is to investigate a spectrum analysis technique for detecting and monitoring red blood cell (RBC) aggregation using a high-frequency array transducer. To assess the feasibility...
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Raman Spectroscopy for the Endoscopic Diagnosis of Esophageal, Gastric, and Colonic Diseases

Sharma N, Takeshita , Ho KY

Globally white-light endoscopy with biopsy sampling is the gold standard diagnostic modality for esophageal, gastric, and colonic pathologies. However, there is overwhelming evidence to highlight the deficiencies of an approach...
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Comparison of the Chemical Composition of Subchondral Trabecular Bone of Medial Femoral Condyle between with Advanced Osteoarthritis and without Osteoarthritis

Kim KK, Won Y, Kim TG, Baek MH, Choi J

BACKGROUND: The purpose of this study is to investigate differences of chemical composition between subchondral bone in advanced osteoarthritic (OA) and non-OA distal femur. METHODS: Twenty femurs were harvested, respectively. The...
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Molecular Imaging for Theranostics in Gastroenterology: One Stone to Kill Two Birds

Ko KH, Kown CI, Park JM, Lee HG, Han NY, Hahm KB

Molecular imaging in gastroenterology has become more feasible with recent advances in imaging technology, molecular genetics, and next-generation biochemistry, in addition to advances in endoscopic imaging techniques including magnified high-resolution...
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Correlation between the Severity of Obstructive Sleep Apnea and Heart Rate Variability Indices

Park DH, Shin CJ, Hong SC, Yu J, Ryu SH, Kim EJ, Shin HB, Shin BH

The risk of cardiovascular disease is known to be increased in obstructive sleep apnea syndrome (OSAS). Its mechanism can be explained by the observation that the sympathetic tone increases due...
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Effective Intravenous Conscious Sedation Using MAC(Monitored Anesthesia Care) and BIS(Bispectral Index) in Plastic Surgery Field

Song IS, Yoo YC, Yang WY, Park J

  • KMID: 2334686
  • J Korean Soc Aesthetic Plast Surg.
  • 2005 Mar;11(1):40-44.
We replaced anesthesia of operations, which has done under local or general anesthesia, by MAC(monitored anesthesia care) with various patient's monitoring devices such as BIS(bispectral index). From April 2003 to...
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Usefullness of Raman Spectroscopy in Differentiation between Cancer and Adjacent Normal Tissue of the Larynx

Lee SH, Lee BJ, Wang SG, Goh EK, Chon KM, Lee HM, Jeong ED

  • KMID: 2276369
  • Korean J Otolaryngol-Head Neck Surg.
  • 2005 Mar;48(3):367-372.
BACKGROUND AND OBJECTIVES: Raman spectroscopy is a vibrational spectroscopic technique capable of providing details on the chemical composition, molecular structure and molecular interactions in cells and tissues. Its application of...
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Effects of Nasal Continuous Positive Airway Pressure Application on Sympathetic Activation: Power Spectrum Analysis of Electrocardiogram in Obstructive Sleep Apnea Syndrome

Youn T, Park HJ, Kim EJ, Jeong DU

  • KMID: 2317338
  • Sleep Med Psychophysiol.
  • 2000 Jun;7(1):43-50.
OBJECTIVES: Obstructive sleep apnea syndrome(OSAS) is known to be associated with the changes of autonomic nervous system (ANS). Nasal continuous positive airway pressure (nCPAP) treatment was found to correct abnormal...
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Change in activity of the sympathetic nervous system in diet-induced obese rats

Park SY, Lee YJ, Kim YW, Kim HJ, Doh KO, Lee MK, Kim JY, Lee SK

We investigated the change in activity of the sympathetic nervous system (SNS) in high-sucrose diet (HSD)-induced obese rats compared with controls. Power spectral analyses of R-R interval variability were performed...
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Quantitative Evaluation of Denervation Potentials in Gastrocnemius of Rats Using Power Spectrum Analysis

Lee YH, Park RW, Shim JH, Choi JH

  • KMID: 2323186
  • J Korean Acad Rehabil Med.
  • 1999 Apr;23(2):202-209.
OBJECTIVE: To evaluate the changes of maximum fibrillation potential amplitude and root- mean-square (RMS) value of denervation potential after nerve injury using power spectrum analysis. METHODS: The sciatic nerve was transected...
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Spectral Analysis of EEG during Inhalation of Halothane, Enflurane, and Isoflurane in the Rat

Goh JS, Baek WY, Choi SM, Lee MG, Kim CY, Kim BK

The dose-related effects of halothane, enflurane, and isoflurane on the rat EEG were evaluated qusntitstively by spectral analysis of the EEG recorded from the rat skull. The anesthetics were...
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Evaluation of Anesthetic Effects of Enflurane by Spectrum Analysis of Rat EEG

Lee MG, Baek WY, Kim BK, Kim CY

To evaluate the depth of enflurane anesthesia, spectrum analysis of rat EEG was used. Bipolar EEG was recorded through one lead form rat scalp during inhalation with 1,2,3 and 4%...
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Spectrum Analysis of Rat EEG during Infusion of Thiopental and Ketamine

Cho ST, Lee MG, Kim CY

The dose-ralated dffects of intravenous infusion of thiopental and ketamine on the rat EEG were evaluated quantitatively by spectrum analysis of EEG recorded from the rat scalp. The anesthetics were infused...
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